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<table width="100%" summary="page for codling"><tr><td>codling</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>Dose-mortality data, for fumigation of codling moth with methyl bromide</h2>

<h3>Description</h3>

<p>Data are from trials that studied the mortality response of codling moth
to fumigation with methyl bromide.
</p>


<h3>Usage</h3>

<pre>data(codling)</pre>


<h3>Format</h3>

<p>A data frame with 99 observations on the following 10 variables.
</p>

<dl>
<dt>dose</dt><dd><p>Injected dose of methyl bromide, in gm per cubic meter</p>
</dd>
<dt>tot</dt><dd><p>Number of insects in chamber</p>
</dd>
<dt>dead</dt><dd><p>Number of insects dying</p>
</dd>
<dt>pobs</dt><dd><p>Proportion dying</p>
</dd>
<dt>cm</dt><dd><p>Control mortality, i.e., at dose 0</p>
</dd>
<dt>ct</dt><dd><p>Concentration-time sum</p>
</dd>
<dt>Cultivar</dt><dd><p>a factor with levels <code>BRAEBURN</code> <code>FUJI</code> <code>GRANNY</code> <code>Gala</code> <code>ROYAL</code> <code>Red Delicious</code> <code>Splendour</code></p>
</dd>
<dt>gp</dt><dd><p>a factor which has a different level for each different
combination of <code>Cultivar</code>, <code>year</code> and <code>rep</code> (replicate).</p>
</dd>
<dt>year</dt><dd><p>a factor with levels <code>1988</code> <code>1989</code></p>
</dd>
<dt>numcm</dt><dd><p>a numeric vector: total number of control insects</p>
</dd>
</dl>



<h3>Details</h3>

<p>The research that generated these data was in part funded by New Zealand
pipfruit growers.  The published analysis was funded by New Zealand
pipfruit growers. See also <code>sorption</code>.
</p>


<h3>Source</h3>

<p>Maindonald, J.H.; Waddell, B.C.; Petry, R.J. 2001.
Apple cultivar effects on codling moth (Lepidoptera: Tortricidae)
egg mortality following fumigation with methyl bromide.
Postharvest Biology and Technology 22: 99-110.
</p>


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